Hi,
Glad it's helpful.
The answers for a 308 rifle for long-range shooting are pretty straight forward, and are mainly determined by your price point.
1. Best choice at "cheapest": Savage 10FP
2. Best choice at "under $1000 for rifle": Remington 700 PSS
3. Best choice for under $3500: AI-AE, SAKO TRG-22, or custom from GAP, KMW, Surgeon
4. Best choice at any price: AI-AW
For the majority of recreational people, #2 will serve their purposes, and will shoot well enough from the factory to go to 1000 yards, or hit dimes at 100 yards. Make sure to get good bases and rings (usually means Badger).
For stock, just make sure it fits you. This means that you can get a solid, stable position with no muscle tension, that you can operate the rifle (trigger, bolt) and aim it comfortably without stress. Most people will be able to configure a McMillan A5, AI-AICS "stock", or TRG stock to fit them well. Most standard bolt rifle stocks have a cheek "comb" that is way too low for scope use.
hope this helps..
Zak